我制作了一个井字游戏,用户与计算机。即使不使用Redux,它也可以正常工作,但是自从将Redux集成到其中之后,情况就不妙了。
我要实现的目标是:如果有一个空的正方形,则CPU将O
随机放置在一个空的位置(在用户放置X
之后),但这一次使用Redux
我认为是引起问题的原因let turnState = this.props.turnValueReducerRedux(this.state.turn);
和/或我的turnReducer.js
文件不正确。
我已经标记了// START HERE
和// END HERE
来指出我认为问题可能出在哪里。
我在做什么错,我该如何解决?
这里是Board.js
import React, { Component } from 'react';
import './Board.css';
import { connect } from 'react-redux';
import * as actionTypes from '../../store/actions/actions';
class Board extends Component {
constructor(props) {
super(props);
this.state = {
winner: undefined,
};
this.gameState = {
turn: 'X',
gameLocked: false,
gameEnded: false,
board: Array(9).fill(''),
totalMoves: 0
}
this.clicked = this.clicked.bind(this);
}
clicked(box) {
if(this.gameState.gameEnded || this.gameState.gameLocked) {
return;
}
// START HERE
let turnState = this.props.turnValueReducerRedux(this.gameState.turn);
if(this.gameState.board[box.dataset.square] === '') {
this.gameState.board[box.dataset.square] = turnState;
box.innerText = this.gameState.turn;
this.gameState.turnState = this.gameState.turnState === 'X' ? 'O' : 'X';
this.gameState.totalMoves++;
}
// END HERE
console.log("this.gameState.totalMoves ==> " + this.gameState.totalMoves);
var result = this.checkWinner();
if(result === 'X') {
this.gameState.gameEnded = true;
this.setState({
winner: 'X',
winnerLine: 'X wins'
});
console.log("X wins");
} else if(result === 'O') {
this.gameState.gameEnded = true;
this.setState({
winner: 'O',
winnerLine: 'O wins'
});
console.log("O wins");
} else if(result === "draw") {
this.gameState.gameEnded = true;
this.setState({
winner: 'draw',
winnerLine: 'match is a draw'
});
}
console.log("result ==> " + result);
if(this.gameState.turnState === 'O' && !this.gameState.gameEnded) {
this.gameState.gameLocked = true;
setTimeout(() => {
do {
var random = Math.floor(Math.random() * 9);
} while(this.gameState.board[random] !== '');
this.gameState.gameLocked = false;
console.log("reached here");
this.clicked(document.querySelectorAll('.square')[random]);
}, 3000)
}
}
render() {
return(
<div id="game">
<div id="state">{this.state.winnerLine}</div>
<div id="head">
Tic Tac Toe
</div>
<div id="board" onClick={(e) => this.clicked(e.target)}>
<div className="square" data-square="0"></div>
<div className="square" data-square="1"></div>
<div className="square" data-square="2"></div>
<div className="square" data-square="3"></div>
<div className="square" data-square="4"></div>
<div className="square" data-square="5"></div>
<div className="square" data-square="6"></div>
<div className="square" data-square="7"></div>
<div className="square" data-square="8"></div>
</div>
</div>
);
}
}
const mapStateToProps = state => {
return {
turnValue: state.turnValue
};
};
const mapDispatchToProps = dispatch => {
return {
turnValueReducerRedux: (value) => dispatch({type: actionTypes.TURN_VALUE, value})
};
};
export default connect(mapStateToProps, mapDispatchToProps)(Board);
这里是turnReducer.js
:
import * as actionTypes from '../actions/actions';
const initialValue = {
turnValue: 'O'
};
const turnReducer = (state = initialValue, action) => {
switch (action.type) {
case actionTypes.TURN_VALUE:
console.log("turnReducer ==> " + action.value);
return {
...state,
turnValue: action.value
};
default:
return state;
}
}
export default turnReducer;
答案 0 :(得分:0)
我认为关联的分派操作(turnValueReducerRedux
)将不会返回您期望的结果。它将返回完整的动作({ type: '...', value: ... })
,而不仅仅是返回值,这意味着在以下代码中turnState将是错误的:
let turnState = this.props.turnValueReducerRedux(this.state.turn);
if(this.gameState.board[box.dataset.square] === '') {
this.gameState.board[box.dataset.square] = turnState;
作为一般建议,您似乎并不依赖state
或商店来呈现数据,这是React的主要职责之一。因此,您将通过分派操作来在存储中设置值,但不要使用this.state.turnValue
来访问它,它由以下代码定义:
const mapStateToProps = state => {
return {
turnValue: state.turnValue
};
};
还请注意,gameState
和state
有很大的不同,因为后者将触发重新渲染并连接到商店,而前者则不会。
更新
根据下面的讨论,这是一个采用不同方法的示例:https://codesandbox.io/s/x2x773pqxz
自动计算机播放器是复杂的部分,因为这是人类播放器的动作的副作用。因此,我添加了redux-thunk
以允许某些操作触发其他操作。我已经延迟了计算机的转动,以便您可以看到它的运行情况。
我还将董事会和各个Square拆分为单独的组件,这两个组件仅用于演示。 Game
组件和redux/actions.js
文件是最重要的。
理论上,您可以选择自己喜欢的棋盘大小和玩家人数,但是CSS只是为3x3棋盘设置的。
我没有实现findWinner
逻辑,因为这感觉太费力了
让我知道我是否可以澄清任何事情,希望对您有所帮助!